/*******************************************************************************
 * Copyright 2012 Erik Gast
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package easyobserving;

import java.util.List;

public interface ObserverHandler<T> extends ObserverRegistrable<T> {

	/**
	 * @param methodName the name of the method to call
	 * @param args the arguments passed to the method call
	 */
	public void notifyObservers(String methodName, Object... args);
	
	/**
	 * @return the number of observers
	 */
	public int getObserverCount();
	
	/**
	 * @param observer the observer to check
	 * @return if observer is observing this observable
	 */
	public boolean isObserving(T observer);
	
	/**
	 * Returns a list of all observers.
	 * @return the list of observers.
	 */
	public List<T> getObservers();

	public T getNotifyAllObserversProxy();

}
